c# - set page height -


i've got search page has criteria in panel, when page opens there no results , page footer appearing directly beneath search panel. how set results panel set height, stretch height of grid when search results found. cheers

<%@ page title="" language="c#" masterpagefile="~/site.master" autoeventwireup="true"     codebehind="frmsearch.aspx.cs" inherits="web.frmsearch" %>  <%@ register assembly="ajaxcontroltoolkit" namespace="ajaxcontroltoolkit" tagprefix="asp" %> <asp:content id="content1" contentplaceholderid="contentplaceholder1" runat="server">     <asp:toolkitscriptmanager id="toolkitscriptmanager1" runat="server">     </asp:toolkitscriptmanager>     <asp:updatepanel id="pnlupdate" runat="server" childrenastriggers="true">         <contenttemplate>             <div id="divsearch">                 <asp:panel id="pnlsearch" runat="server" defaultbutton="btnsearch">                     <table width="100%">                         <tr>                             <td>                                 <asp:label id="lblname" runat="server" text="name:" cssclass="head2"></asp:label>                             </td>                             <td>                                 <asp:textbox id="txtsurname" runat="server" width="200" cssclass="norm"></asp:textbox>                             </td>                             <tr>                                 <td>                                     <asp:label id="lbladdress" runat="server" text="address:" cssclass="head2"></asp:label>                                 </td>                                 <td>                                     <asp:textbox id="txtaddress" runat="server" width="200" cssclass="norm"></asp:textbox>                                 </td>                             </tr>                             <tr>                                 <td colspan="2" align="center">                                     <asp:button id="btnsearch" runat="server" text="search" onclick="btnsearch_click" />                                 </td>                                 <td colspan="2" align="center">                                     <asp:button id="btnreset" runat="server" text="reset" onclick="btnreset_click" />                                 </td>                             </tr>                     </table>                 </asp:panel>             </div>             <div>                 <asp:label id="lblcount" runat="server" cssclass="head2"></asp:label>             </div>             <hr />             <div id="divresults">                 <asp:panel id="pnlresults" runat="server">                     <asp:gridview id="gvresults" runat="server" autogeneratecolumns="false" width="99%"                         cssclass="grd" onrowdatabound="gvresults_rowdatabound">                         <columns>                             <asp:templatefield headertext="name">                                 <itemtemplate>                                     <asp:hiddenfield id="hfguid" runat="server" value='<%# bind("guid")%>' />                                     <asp:label id="lblname" runat="server" text='<%# bind("name")  %>'></asp:label>                                 </itemtemplate>                             </asp:templatefield>                             <asp:templatefield headertext="address">                                 <itemtemplate>                                     <asp:label id="lbladdress" runat="server" text='<%# bind("address") %>'></asp:label>                                 </itemtemplate>                             </asp:templatefield>                             <asp:templatefield headertext="post code">                                 <itemtemplate>                                     <asp:label id="lblpostcode" runat="server" text='<%# bind("post_code") %>'></asp:label>                                 </itemtemplate>                             </asp:templatefield>                             <asp:templatefield headertext="telephone">                                 <itemstyle width="150px" />                                 <itemtemplate>                                     <asp:label id="lbltelephone" runat="server" width="150px" text='<%# bind("telephone") %>'></asp:label>                                 </itemtemplate>                             </asp:templatefield>                         </columns>                     </asp:gridview>                 </asp:panel>             </div>         </contenttemplate>         <triggers>             <asp:asyncpostbacktrigger controlid="btnsearch" />             <asp:asyncpostbacktrigger controlid="btnreset" />         </triggers>     </asp:updatepanel> </asp:content>

you can use min-height:200px divsearch container.

#divsearch {   min-height:200px  //according requirement }

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